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The mission of the AAVSO is to enable anyone, anywhere to participate in scientific discovery through variable star astronomy. 

Resources

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(VSX) Variable Star Index

Pick a Star

Plot a light curve
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The Journal of the AAVSO
Data
Submit and Access Data
Telescope
Tools and Observer Resources
Observing Sections
Observing Sections
Education
Education
CHOICE Courses, Manuals, Videos
AAVSO In Press
AAVSO In Press
Membership and Support
Membership and Support

The AAVSO is an equal opportunity and discrimination / harassment free environment. 
Please read our policies HERE

AAVSO at a Glance

Variable Star Observations in Database:

5 2 , 8 3 1 , 8 2 6 and Counting ...

Last Observation Received:

21 min 22 sec ago by MNN - Nicola Montecchiari (IT)

DE CMi   Feb 23.9238   8.025TR

Plot DE CMi light curve

Our Stellar Partners


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